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23805633137 = 1113172576031
BaseRepresentation
bin10110001010111011…
…010010001001110001
32021110001111110111012
4112022323102021301
5342223220230022
614534113200305
71501632354146
oct261273221161
967401443435
1023805633137
11a106728580
124744560095
132324c65070
14121b8c23cd
15944deade2
hex58aed2271

23805633137 has 24 divisors (see below), whose sum is σ = 29709426432. Its totient is φ = 18801619200.

The previous prime is 23805633133. The next prime is 23805633139. The reversal of 23805633137 is 73133650832.

It is not a de Polignac number, because 23805633137 - 22 = 23805633133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23805633094 and 23805633103.

It is not an unprimeable number, because it can be changed into a prime (23805633133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246689 + ... + 329342.

It is an arithmetic number, because the mean of its divisors is an integer number (1237892768).

Almost surely, 223805633137 is an apocalyptic number.

It is an amenable number.

23805633137 is a deficient number, since it is larger than the sum of its proper divisors (5903793295).

23805633137 is a wasteful number, since it uses less digits than its factorization.

23805633137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576089 (or 576072 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 23805633137 in words is "twenty-three billion, eight hundred five million, six hundred thirty-three thousand, one hundred thirty-seven".

Divisors: 1 11 13 17 143 187 221 289 2431 3179 3757 41327 576031 6336341 7488403 9792527 82372433 107717797 127302851 166472959 1400331361 1831202549 2164148467 23805633137